Trolley pole and wheel



' Patented Feb. 7,' |899. F. KRAMER.

TROLLEY POLE AND WHEEL.

(Application led Hay 11, 1898.)

(No Model.)

ams mns co. enum-mnd, wAsu UNITED l STATES j PATENT OFFICE.

i FRITZ KRAMER, OF BLYTHEDALE, PENNSYLVANIA.

`TROLLEY POLE AND WHEEL.

SPECIFICATION forming part of Letters Patent No. 619,080, dated February'7, 1899.

Application led May ll, 1898. Serial No. 680,350. (No model.)

'To allrwhom it may concern:

Be it known that l, FRITZ KRAMER, a citizen of the United States ofAmerica, residing at Blythedale, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inTrolley Poles and lVheels, of which the following is a specification,reference being had therein to the accompanying drawings.

v This invention relates to certain new and useful improvements introlleys, and has for its object to construct a trolley which will whenplaced in position on the wire be prevented from accidental displacementtherefrom.

The principal features of my invention reside in the two abutting upperends of the spring-actuated arms, which extend over the wire andtrolley-wheel, being held away in one position, thereby preventing thewheel from leaving the Wire, together with the novel means forretracting these arms to permit the removal of the trolley-Wheel fromthe wire when it is so desired, and in the novel construction wherebythe trolley-wheel is always held in contact with the wire whether thetrolley-pole is in a depressed or elevated position.

Theinvention finally consists in the novel construction, combination,and arrangement of parts hereinafter specifically described, illustratedin the accompanying drawings, and particularly pointed out inthe claims.

In the drawings,l1`igure lis a side view illustrating my novel means forkeeping the trolley-wheel in Contact with the wire, showing thetrolley-pole in a raised position. The dotted lines illustrate thetrolley-pole in a depressed or lowered position. Fig. 2 is a perspectiveview of the lever-and-rod connections for keeping the trolley-wheel incontact with the wire. Fig. 3 is a vertical sectional view of thetrolley-wheel, guides, and springactuated arms. Fig. 4 is an end View ofthe wheel and part of the lever-and-rod connections. Fig. 5 is aperspective view of one of the spring-actuated arms.

Like numerals of reference indicate corresponding parts throughout theseveral views of the drawings, in which- 1 indicates the trolley-pole,which is secured to the top of the car in the usual manner, as at 2and 3denotes a harp formed on the upper end of the pole, having a shaft 4suitably j ournaled therein. The shaft 4has mounted thereon atrolley-wl1eel 5 and a pair of guides 6, which project above thetrolley-v wheel and are mounted on each side thereof. The guides 6 havea triangular cut-away portion 7 at their lower ends or sides, whichallow the guides to adj ust themselves on the harp of the trolleyepolewhen operated by the lever-and rod connection, hereinafter described.Formed in the guidesG, above the triangular cuteaway portion, is anoblong slot 9, and beneath the oblong slot is an oblong cavity, in whichis pivotally mounted at their center, as at l0, the arms 11. The upperends of the arms `11 have formed integral therewith projections 12,which are inserted through the oblong slot 9, and the ends of the sameabut against each other and are adapted to prevent the trolley-wheelfrom leaving the wire when in such position.

Secured upon the outer side of the harp 3 are springs 13, the free endsof which engage the lower ends of the arms 11, as at 14, and are adaptedto retain the arms 11 in position. Secured to the lower ends of the arms11 is a Wire or cord 15, which when pulled downwardly retracts the arms11, and the trolley can be removed from the wire.

A hollow chamber lris formed in the trolley-pole beneath the harp 3 forthe insertion therein of a rod 17, which connects at its upper end to apin 18, secured in the guide 6, and at its opposite end connected, as at19, to one end of a lever 18 and is pivotally connected to thetrolley-pole at 20. Pivotally secured to the opposite end of the lever18', as at 2l, is a rod 22, which extends to near the lower end of thetrolley-pole and is connected to a curved lever 23 at the end 24. Thelever 23 is pivoted to the arms 25 at 26, and the arms 25 are suitablysecured ,to the trolley-pole.

27 is a roller pivotally secured to the free end of the lever 23. Thefunction of the roller 27, which is secured to the free end of the arm23, is to allow for an easy and free adjustment of the lever-and-rodconnections when the trolley is in an elevated or lowered position.

It will be observed that when the trolley is depressed the roller 27,bearing on the roof of the car, actsl upon the lever 23, thereby pullingthe rod 22 downwardly, inclining the lever 18' upwardly, and forcing thebar 17 in an upward direction, which necessarily will keep the guides towhich the spring-actuated arms are secured in an upright position andprevent the trolley from leaving the wire, and it will also be observedthat when the trolley is elevated the lever-and-rod connection willoperate in a reverse manner, yet will keep the guides to which thespring-actuated arms are connected in a vertical or upright position.

It will also be noted that various changes can be made in the details ofconstruction Without departing from the general spirit of my invention.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, isy y l. In a trolley, the combination of a harphaving suitably journaled therein a trolleywheel, guides journaled oneach side of said trolley-wheel on the inner face of the harp,spring-actuated arms pivoted at their center to said guides which areadapted to retain the wheel in contact with the wire and a series oflever-and-rod connections connected to said guides for keeping thespring-actuated arms in a vertical position when the trolley 'is' eitherdepressed or elevated, substantially as shown and described.

2. In a trolley, the combination of a harp havinga trolley-wheelsuitably journaled therein, a pair of guides mounted on each side ofsaid wheel and on the inner face of the harp, arms pivotally secured tothe said yguides on the inner face thereof, springs secured to the outerface of the said guides adapted to keep the said arms in a closed po-ysition, and a series of lever-and-rod connections connected to the saidguides for keeping the arms in a Vertical position when the trolley iseither elevated ordepressed, substantially as shown and described.

3. In combination a trolley-pole having a harp on its free end andhollowed a suitable Vdistance below said harp, a shaft journaledopposite end to a curved lever pivotally con-v nected to thetrolley-pole near its lower end thereof and a wheel mounted in the freeend of said curved lever, substantially as herein shown and described. fy

In testimony whereof I aftix my signature in the presence of twowitnesses.

FRITZ KRAMER.

Witnesses:

JOHN NoLAND, ALBERT J. WALKER.

